Can dogs be trained to detect the smell of cancer?

Описание к видео Can dogs be trained to detect the smell of cancer?

For the past few decades, researchers have been exploring the possibility that cancer, possibly created by the growth of tumors, actually has a particular odor -- and dogs can pick up on that smell. Some doctors believe this area of research may lead to more efficient screening methods and cancer treatment procedures. Special correspondent Dr. Emily Senay reports.

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